package org.dollyn.csdnclient;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class Activator extends AbstractUIPlugin {

	// The plug-in ID
	public static final String PLUGIN_ID = "org.dollyn.csdnclient";

	// The shared instance
	private static Activator plugin;
	
	private ImageRegistry imageRegistry;
	private boolean imageInited = false;
	
	/**
	 * The constructor
	 */
	public Activator() {
	}

	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;
		//construct the model
		ModelManager.getInstance().start();
		//initImages();
	}

	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
	 */
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

	/**
	 * Returns the shared instance
	 * @return the shared instance
	 */
	public static Activator getDefault() {
		return plugin;
	}
	
	public ImageRegistry getImageRegistry() {
		if(this.imageRegistry == null) {
			this.imageRegistry = new ImageRegistry();
		}
		return this.imageRegistry;
	}
	
	public Image getImage(String name) {
		ImageRegistry registry = getImageRegistry();
		String key = "/images/" + name;
		return registry.get(key);
	}

	public void initImages() {
		if(imageInited)
			return;
		ImageRegistry reg = getImageRegistry();
		for(int i = 0; i < 105; i++) {
			String path = "/images/" + i + ".gif";
			reg.put(path, getImageDescriptor(path));
		}
		imageInited = true;
	}
	
	/**
	 * Returns an image descriptor for the image file at the given
	 * plug-in relative path
	 *
	 * @param path the path
	 * @return the image descriptor
	 */
	public static ImageDescriptor getImageDescriptor(String path) {
		return imageDescriptorFromPlugin(PLUGIN_ID, path);
	}
}
